উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕

㹤㸺✵ⓑ⾜㸼

ࣉࣞ࢟ࣕࢫࢺ3&ᗋ∧ࡢ᪂ࡓ࡞᥋ྜᵓ㐀ࡢ㛤Ⓨ㸺✵ⓑ⾜㸼 ᰴ ࣆ࣮࢚ࢫ୕⳻  ṇ఍ဨ ᕤಟ ‫ஂۑ‬ᚨ ㈉኱
ᰴ ࣆ࣮࢚ࢫ୕⳻  ṇ఍ဨ ‫ۑ ۑۑ‬ᚿ㐨 ᫛㑻ᰴ ࣆ࣮࢚ࢫ୕⳻  ṇ఍ဨ ‫ۑ ۑۑ‬ㅖᶫ ඞᩄ㸺✵ⓑ⾜㸼Abstract㸸In recent years, it is planed to adopt PCaPC slab for many of RC slab replacement works of t
steel girder bridge in Japan. In the slab replacement, the thickness of slab is limited in order to suppress
the increase of dead load and it is difficult to use looped splice joint method looped splice joint method
as conventional. Therefore new joint methods, such as headed bar joint method, possible to apply to thinslab have been developing. However, with these joint methods, a bottom formwork is needed whencasting concrete at the joint part, and its durability may decrease. A new joint method which can beapplied to a thin slab and does not need a bottomformwork when casting concrete will have advantages
in market of the replacement of slab. This paper presents about the study of the material property test
and bending load test conducted for the development of this new joint method.

㸺✵ⓑ⾜㸼Key words㸸 PCaPC , replacement of the RC slab , jointing method, improving productivity㸯㸬ࡣࡌࡵ࡟ 㗰ᶫࡢRCᗋ∧ࡢྲྀ᭰࠼ࡢከࡃ࡟ࣉࣞ࢟ࣕࢫࢺPCᗋ∧㸦௨ୗ㸪PCaPCᗋ∧㸧ࡢ᥇⏝ࡀィ⏬ࡉࢀ࡚࠸ࡿࠋ᪂タᕤ஦ࡢሙྜ㸪࠶ࡈ௜ࡁᙧ≧ࡢᗋ∧ࡀ⏝࠸ࡽࢀ㸪PCaPCᗋ∧┦஫ࡢ᥋ྜ࡟ࡣ୍⯡࡟࣮ࣝࣉ㕲➽ࢆ⏝࠸ࡓ⥅ᡭᵓ㐀ࡀ౑⏝ࡉࢀ࡚࠸ࡿࠋ࠶ࡈ௜ࡁᙧ≧ࡢᗋ∧ࡣ㸪᥋ྜ㒊᪋ᕤ᫬࡟⊃㝼࡞᱆ୗ✵㛫࡛ࡢேຊస
ᴗࡀ๓ᥦ࡜࡞ࡿᗏᆺᯟࡀ୙せ࡞ࡓࡵ⏕⏘ᛶ࡟ඃࢀ㸪࠶ࡈඛ➃ࡲ࡛ࣉࣞࢫࢺࣞࢫࡀᑟධࡉࢀࡿࡓࡵ⪏ஂᛶ࡟ඃࢀࡓᵓ㐀࡜࠸࠼ࡿࠋ୍᪉㸪ᗋ∧ྲྀ᭰ᕤ஦࡛ࡣ㸪ṚⲴ㔜ቑຍࢆᢚ࠼ࡿ┠ⓗ࠿ࡽᗋ∧ཌࡀไ㝈ࡉࢀ㸪᪂ࡓ࡞⥅ᡭᵓ㐀ࡀ㛤Ⓨ࣭᥇⏝ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽ㸪ࡑࢀࡽࡢ⥅ᡭᵓ㐀ࡣ࠶ࡈ௜ࡁᙧ≧ࡢᗋ∧࡬ࡢ㐺⏝ࡀ㞴ࡋ࠸ࠋࡇࡢࡼ࠺࡞⫼ᬒ࠿ࡽ㸪ᮏ◊✲࡛ࡣⷧ࠸ᗋ∧ཌ࡬ࡢ㐺⏝ࢆ๓ᥦ࡜ࡍࡿ࡜࡜ࡶ࡟㸪࠶ࡈ௜ࡁᙧ≧ࡢᗋ∧࡟ࡶ㐺⏝ྍ⬟࡞⥅ᡭᵓ㐀ࡢ㛤Ⓨࢆ⾜ࡗࡓࠋᮏ✏࡛ࡣ㸪 PCaPCᗋ∧ࡢ᥋ྜᵓ㐀࡛࠶ࡿ
͆MuSSL㸦Mutual Settled Secure Lap㸧ᕤἲ͇࡟ᑐࡋ࡚⾜ࡗࡓྛ✀ᛶ⬟ヨ㦂࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ㸰㸬ᐃ╔ᵓ㐀࣮ࣝࣉ⥅ᡭࡢ㐺⏝ࡀ㞴ࡋ࠸ⷧ࠸ᗋ∧࡟࠾ࡅࡿ⥅ᡭᵓ㐀࡜ࡋ࡚ࡣ㸪㕲➽➃㒊࡟ఱࡽ࠿ࡢᐃ╔ᵓ㐀ࢆタࡅ㸪⥅ᡭ㛗ࢆ▷ࡃࡍࡿᡭἲࡀ᭷ຠ࡛࠶ࡾ㸪ྛ✀ᕤἲࡀᥦ᱌ࡉࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣ㕲➽➃㒊ࡢᐃ╔ᵓ㐀࡜ࡋ࡚㸪ࡡࡌ⠇㕲➽➃㒊࡟෇ᙧࢼࢵࢺࢆタ⨨ࡋࡓᵓ㐀ࢆ㑅ᐃࡋࡓ㸦෗┿㸧ࠋ෇ᙧࢼࢵࢺࡣ㗪㕲〇࡜ࡋ㸪ࢥࣥࢡ࣮ࣜࢺᡴタ୰࡟ື࠿࡞࠸ࡼ࠺࡟᥋╔๣࡛ᅛᐃࡋࡓࠋ⪏ஂᛶྥୖࡀồࡵࡽࢀࡿሙྜࡣ㸪࢚࣏࢟ࢩᶞ⬡ሬ⿦㕲➽࡜ࡋ㸪ྠࡌࡃ࢚࣏࢟ࢩᶞ⬡ሬ⿦ࢆ᪋ࡋࡓ෇ᙧࢼࢵࢺࢆᗋ∧〇సᚋ࡟タ⨨ࡍࡿࠋ㕲➽ࡢ࢚࣏࢟ࢩᶞ⬡ሬ⿦࡟ࡣሬ⿦⾲㠃ࡢพฝ࡟ࡼࡾࢥࣥࢡ࣮ࣜࢺࡢ௜╔ຊࢆྥୖࡉࡏࡓࢱ࢖ࣉࡢ౑⏝ࢆ๓ᥦ࡜ࡋࡓࠋ෗┿෇ᙧࢼࢵࢺᐃ╔উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕

 ᮏ◊✲࡛ࡣ෗┿ D ࡟♧ࡍ㕲➽➃㒊࡟෇ᙧࢼࢵࢺࢆタࡅ࡚⥅ᡭ㛗ࢆ▷ࡃタᐃࡋࡓヨ㦂య㸦௨ୗ㸪┤⥺ᐃ╔ࢱ࢖ࣉ㸧࡜ᅗ E ࡟♧ࡍ࠶ࡈ௜ࡁᙧ≧ࡢᗋ∧࡟㐺⏝࡛ࡁࡿࡼ࠺ୗ➽ࢆୖ᪉࡟᭤ࡆୖࡆ࡚෇ᙧࢼࢵࢺࢆタ⨨ࡋࡓ⥅ᡭᵓ㐀㸦௨ୗ㸪᭤ࡆᐃ╔ࢱ࢖ࣉ㸧ࡢ᳨ウࢆ⾜ࡗࡓࠋD ┤⥺ᐃ╔ࢱ࢖ࣉE ᭤ࡆᐃ╔ࢱ࢖ࣉ෗┿0X66/ ᕤἲ㸱ᐃ╔ᵓ㐀ࡢᇶᮏᛶ⬟☜ㄆ'ࡡࡌ⠇㕲➽㸦㸯㸧ヨ㦂᪉ἲ㕲➽࡜෇ᙧࢼࢵࢺࡢ᥋ྜ㒊ࡢᙉᗘࢆ☜ㄆࡍࡿࡓࡵ㸪෇ᙧࢼࢵࢺ෗┿࡟♧ࡍ㕲➽ᘬᙇヨ㦂ᶵࢆ⏝࠸࡚ᘬᢤࡁヨ㦂ࢆ'ࡡࡌ⠇㕲➽ȭ ȭ 㸱㸬㸯 ᐃ╔ᵓ㐀ࡢᘬᢤࡁヨ㦂෇ᙧࢼࢵࢺᅗ ヨ㦂యᙧ≧⾜ࡗࡓࠋヨ㦂ࡣ㸪ࡡࡌ⠇㕲➽ࢆ〇㐀ࡍࡿ௦⾲ⓗ࡞2♫ࡀ〇㐀ࡍࡿD19㕲➽࡜D16㕲➽ࢆᑐ㇟࡟ࡋࡓࠋヨ㦂యᙧ≧ࢆᅗ࡟♧ࡍࠋ㸦㸰㸧ヨ㦂⤖ᯝ⾲࡟ヨ㦂⤖ᯝࢆ♧ࡍࠋࡤࡽࡘࡁࡣ࠶ࡿࡶࡢࡢ࣓࣮࣮࢝2♫࡟ࡼࡿᕪࡣᑠࡉࡃ㸪ࡍ࡭࡚ࡢヨ㦂య࡟࠾࠸࡚ᘬࡁᢤࡁ⪏ຊࡣ300N/mm2 ௨ୖ☜ಖ࡛ࡁࡿࡇ࡜ᣑ኱ࢆ☜ㄆࡋࡓࠋ     ◚ቯᙧែࡣࡍ࡭࡚ࡢヨ㦂య࡟࠾࠸࡚㕲➽ഃࡢࡡࡌᒣᦆയ࡟ࡼࡿᢤࡅฟࡋ࡛࠶ࡾ㸪෇ᙧࢼࢵࢺࡢࡡࡌᒣ࡟ᦆയࡣ࡞࠿ࡗࡓࠋ෗┿ᘬᢤࡁヨ㦂≧ἣ⾲㕲➽ᘬᢤࡁヨ㦂⤖ᯝ 〇㐀䝯䞊䜹䞊㻭♫㕲➽ᚄ㻰㻝㻥 ヨ㦂య㻺㼛㻚᭱኱Ⲵ㔜㼗㻺㻞㻺㻛㼙㼙◚ቯᙧែ㻮♫㻰㻝㻢㻰㻝㻥㻰㻝㻢䐟䐠䐡㻭㼢㼑㻚䐟䐠䐡㻭㼢㼑㻚䐟䐠䐡㻭㼢㼑㻚䐟䐠䐡㻭㼢㼑㻚㻝㻜㻤㻚㻣㻝㻞㻝㻝㻜㻠㻚㻝㻝㻝㻝㻚㻟㻣㻜㻚㻥㻢㻥㻚㻣㻢㻠㻚㻣㻢㻤㻚㻠㻥㻥㻚㻝㻤㻣㻚㻥㻤㻥㻚㻢㻥㻞㻚㻞㻢㻝㻚㻤㻣㻠㻚㻜㻣㻞㻚㻞㻢㻥㻚㻟㻟㻣㻥㻚㻠㻠㻞㻞㻚㻟㻟㻢㻟㻚㻠㻟㻤㻤㻚㻠㻟㻡㻣㻚㻜㻟㻡㻝㻚㻜㻟㻞㻡㻚㻤㻟㻠㻠㻚㻢㻟㻠㻡㻚㻥㻟㻜㻢㻚㻤㻟㻝㻞㻚㻣㻟㻞㻝㻚㻤㻟㻝㻝㻚㻞㻟㻣㻞㻚㻢㻟㻢㻟㻚㻡㻟㻠㻥㻚㻝ᢤ䛡ฟ䛧䠄㕲➽䛽䛨ᒣᦆയ䠅ᢤ䛡ฟ䛧䠄㕲➽䛽䛨ᒣᦆയ䠅䈜ᛂຊᗘ䠷㻺㻛㼙㼙㻞䠹䛿᭱኱Ⲵ㔜䜢㕲➽䛾බ⛠᩿㠃✚䛷㝖䛧䛯್ᢤ䛡ฟ䛧䠄㕲➽䛽䛨ᒣᦆയ䠅ᢤ䛡ฟ䛧䠄㕲➽䛽䛨ᒣᦆയ䠅উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬㸱㸬㸰 ᐃ╔ᛶ⬟ヨ㦂〔論文〕

㸦㸯㸧ヨ㦂᪉ἲࢥࣥࢡ࣮ࣜࢺ࡟ᇙタࡉࢀࡓሙྜࡢᐃ╔ᛶ≧ࢆ☜ㄆࡍࡿ཯ຊ཯ຊ௜╔༊㛫ࡦࡎࡳࡓࡵ㸪㕲➽ᐃ╔࣭⥅ᡭᣦ㔪 㸦 1 ࡟ᥖ㍕ࡉࢀࡿ᪉ἲࢆཧ⪃࡟

ヨ㦂యࡣ࢚࣏࢟ࢩᶞ⬡ሬ⿦ࡢ࣓࣮࣮࢝2♫㸦௨ୗ㸪C♫㸪
D♫㸧࡜㸪ẚ㍑⏝࡜ࡋ࡚ࢥࣥࢡ࣮ࣜࢺࡢ௜╔ࢆ⦕ษࡾࢆࡋࡓ௜╔↓ࡋࡢ3✀㢮ࢆᑐ㇟࡟⾜ࡗࡓࠋ௜╔᭷ࡾヨ㦂య࡛ࡣᐃ╔⫼㠃㏆ഐࡢ㕲➽ࡦࡎࡳࢆࡡࡌ⠇㕲➽'ᐃࡋࡓࠋヨ㦂᫬ࡢࢥࣥࢡ

2࣮ࣜࢺᅽ⦰ᙉᗘࡣ54.1N/mm ࡛࠶ࡗࡓࠋᐃ

ࡣD19㕲➽ࢆᑐ㇟࡜ࡋ㸪௜╔༊㛫ࢆ12d=228mm࡜ࡋࡓࠋG ᐃ╔ᛶ⬟ヨ㦂ࢆ⾜ࡗࡓࠋᅗ㻙㻞࡟ヨ㦂యᴫせࢆ♧ࡍࠋヨ㦂෇ᙧࢼࢵࢺᅗᐃ╔ᛶ⬟ヨ㦂ᴫせ㸦㸰㸧ヨ㦂⤖ᯝヨ㦂యୖ㠃ヨ㦂యୖ㠃 ⾲࡟ヨ㦂⤖ᯝࢆ♧ࡍࠋ௜╔᭷ࡾヨ㦂యࡣ㸪ᘬᙇᙉᗘࡢつ᱁490N/mm2 㸦SD345㸧ࢆ㉸࠼ࡓࡓࡵ㍕Ⲵࢆ୰Ṇࡋࡓࡀ㸪ࢥࣥࢡ࣮ࣜࢺୖ㠃࡟ᑠࡉ࡞๤㞳ࡀ⏕ࡌࡓ⛬ᗘ࡛࠶ࡗࡓ㸦෗┿㸧ࠋ࣓࣮࣮࢝2♫ࡢሬ⿦࡛ヨ㦂⤖ᣑ኱ᯝ࡟኱ࡁ࡞ᕪ␗ࡣぢࡽࢀࡎ㸪ᐃ╔⫼㠃㏆ഐ࡛ࡢ㕲➽ࡢࡦ ࡎ ࡳ ࡣ ᭱ ኱ ࡛ 430ȝ ⛬ ᗘ 㸦 Es=200kN/mm2 ࡜ ࡋ ࡚
ıs=86N/mm2 㸧ࠋ௜╔↓ࡋヨ㦂యࡣ㕲➽ࡢᢤࡅฟࡋ࡟ࡼࡗ࡚◚ቯࡋ㸪ࢥࣥࢡ࣮ࣜࢺ࡟ᦆയࡣ࡞࠿ࡗࡓࠋ᭱኱Ⲵ㔜ࡣ๓㏙ࡢᘬᢤࡁヨ㦂⤖ᯝ࡜ྠ⛬ᗘ࡛࠶ࡗࡓࠋ⾲ᐃ╔ᛶ⬟ヨ㦂⤖ᯝሬ⿦௙ᵝ෗┿ヨ㦂ᚋࡢ௜╔᭷ࡾヨ㦂య㻯♫ヨ㦂య㻺㼛㻚䐟䐡㻭㼢㼑㻚䐟䐠௜╔↓䛧䐡㻭㼢㼑㻚䐟䐠䐡㻭㼢㼑㻚㻝㻠㻞㻚㻢㻝㻠㻞㻚㻝㻝㻠㻞㻚㻜㻝㻠㻞㻚㻟㻝㻠㻟㻚㻠㻝㻠㻟㻚㻢㻝㻠㻞㻚㻝㻝㻠㻟㻚㻝㻝㻜㻞㻚㻜㻝㻜㻡㻚㻢㻥㻣㻚㻡㻝㻜㻝㻚㻣㻺㻛㼙㼙㻞㻠㻥㻣㻚㻤㻠㻥㻢㻚㻞㻠㻥㻡㻚㻢㻠㻥㻢㻚㻡㻡㻜㻜㻚㻣㻡㻜㻝㻚㻞㻠㻥㻢㻚㻞㻠㻥㻥㻚㻠㻟㻡㻢㻚㻜㻟㻢㻤㻚㻠㻟㻠㻜㻚㻞㻟㻡㻠㻚㻥᭱኱䜂䛪䜏㻔㽢䃛㻕㻟㻢㻠㻚㻡㻠㻝㻡㻚㻠㻠㻞㻡㻚㻞㻠㻜㻝㻚㻣㻟㻢㻢㻚㻠㻟㻜㻢㻚㻝㻟㻜㻞㻚㻟㻟㻞㻠㻚㻥᭱኱Ⲵ㔜㼗㻺䐠㻰♫ 䈜ᛂຊᗘ䠷㻺㻛㼙㼙㻞䠹䛿᭱኱Ⲵ㔜䜢㕲➽䛾බ⛠᩿㠃✚䛷㝖䛧䛯್㻙㸦㸯㸧ヨ㦂᪉ἲኚ఩ィࡓࠋᅗ ࡟ヨ㦂ᴫせࢆ♧ࡍࠋヨ㦂ࡣ㸪D19 㕲➽ࢆᑐ㇟࡜ࡋ࡚ሬ⿦࣓࣮࣮࢝2 ♫ࡢ࢚࣏࢟ࢩᶞ⬡ሬ⿦㕲➽࡜ẚ㍑⏝ࡢ఍つ‽㸦JSCE-E 516-2010㸧ࢆཧ⪃࡟௜╔ᙉᗘヨ㦂ࢆ⾜ࡗ࢚࣏࢟ࢩᶞ⬡ሬ⿦ࡢ௜╔ᛶ≧ࢆ☜ㄆࡍࡿࡓࡵ㸪ᅵᮌᏛ‫ڧ‬௜╔↓ ௜╔᭷㸱㸬㸱 㕲➽ࡢ௜╔ᙉᗘヨ㦂↓ሬ⿦㕲➽ࡢ 3 ✀㢮࡜ࡋ㸪ࡍ࡭ࡾ㔞 0.04mm ᫬࠾ࡼࡧ᭱኱Ⲵ㔜᫬ࡢ௜╔ᛂຊᗘࢆẚ㍑ࡋࡓࠋヨ㦂᫬ࡢࢥࣥࢡ࣮ࣜࢺ
ᅽ⦰ᙉᗘࡣ 50.2N/mm2 ࡛࠶ࡗࡓࠋ⌫ᗙᨭᅽᯈࡡࡌ⠇㕲➽'㸦㸰㸧ヨ㦂⤖ᯝ⾲࡟⁥ࡾ㔞0.04mm᫬࠾ࡼࡧ᭱኱Ⲵ㔜᫬ࡢ௜╔ᛂຊᗘࢆ♧ࡍࠋࡤࡽࡘࡁࡣ࠶ࡿࡀ↓ሬ⿦㕲➽࡜ẚ㍑ࡋ࡚㸪C♫〇࡜Bᅗ௜╔ᙉᗘヨ㦂ᴫせ♫〇࡜ࡶ࡟ࡍ࡭ࡾ㔞0.04mm᫬࠾ࡼࡧ᭱኱Ⲵ㔜᫬ࡢ௜╔ᛂຊᗘẚࡣྠ➼௨ୖ࡛࠶ࡗࡓࠋউঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕⾲㕲➽ࡢ௜╔ᙉᗘヨ㦂⤖ᯝሬ⿦௙ᵝヨ㦂య㻺㼛㻚⁥䜚㔞 㻜㻚㻜㻠㼙㼙᫬↓ሬ⿦᭱኱Ⲵ㔜᫬㻼㻜㻚㻜㻠㼇㼗㻺㼉㻞㻯♫䐟䐠䐡㻭㼢㼑㻚㻢㻣㻚㻥㻢㻥㻚㻣㻡㻞㻚㻞㻢㻟㻚㻟䃣㻜㻚㻜㻠㼇㻺㻛㼙㼙 㼉㻥㻚㻜㻥㻚㻞㻢㻚㻥㻤㻚㻠㻼㼙㼍㼤㼇㼗㻺㼉㻣㻞㻚㻠㻥㻞㻚㻢㻤㻝㻚㻢㻤㻞㻚㻞㻥㻚㻢㻝㻞㻚㻟㻝㻜㻚㻤㻝㻜㻚㻥㻞䃣㼙㼍㼤㼇㻺㻛㼙㼙 㼉↓ሬ⿦ẚ㻝㻜㻜㻚㻜㻑㻝㻜㻜㻚㻜㻑㻰♫䐟䐠䐡㻭㼢㼑㻚㻡㻞㻚㻣㻢㻥㻚㻢㻢㻥㻚㻣㻢㻠㻚㻜㻣㻚㻜㻥㻚㻞㻥㻚㻞㻤㻚㻡㻥㻥㻚㻢㻝㻜㻞㻚㻣㻤㻢㻚㻤㻥㻢㻚㻠㻝㻟㻚㻞㻝㻟㻚㻢㻝㻝㻚㻡㻝㻞㻚㻤↓ሬ⿦ẚ㻝㻜㻝㻚㻝㻑㻝㻝㻣㻚㻞㻑䐟䐠䐡㻭㼢㼑㻚㻢㻣㻚㻤㻣㻞㻚㻢㻢㻠㻚㻞㻢㻤㻚㻞㻥㻚㻜㻥㻚㻢㻤㻚㻡㻥㻚㻜㻝㻜㻞㻚㻡㻝㻜㻥㻚㻡㻝㻜㻞㻚㻜㻝㻜㻠㻚㻣㻝㻟㻚㻢㻝㻠㻚㻡㻝㻟㻚㻡㻝㻟㻚㻥↓ሬ⿦ẚ㻝㻜㻣㻚㻤㻑㻝㻞㻣㻚㻟㻑㸲㸬㟼ⓗ᭤ࡆ㍕Ⲵヨ㦂࡟ࡼࡿ᭤ࡆ⪏ຊ☜ㄆ㸲㸬㸯 ヨ㦂ᴫせ᥋ྜ㒊ࡢ᭤ࡆ⪏ຊࢆ☜ㄆࡍࡿࡓࡵ㸪㟼ⓗ᭤ࡆ㍕Ⲵヨ㦂ࢆ⾜ࡗࡓࠋᅗ D  E ࡟᥋ྜ㒊ࡢ㓄➽ᅗࢆ♧ࡍࠋヨ㦂య✀㢮ࡣ┤⥺ᐃ╔ࢱ࢖ࣉ࡛ୖ➽࠾ࡼࡧୗ➽ࡢ⥅ᡭ㛗ࢆ 15d ࡜ࡋࡓ Type-S(15d)࡜㸪⥅ᡭ㛗ࢆ
12d ࡜ࡋࡓ Type-S(12d)㸪᭤ࡆᐃ╔ࢱ࢖ࣉ Type-B ࡢ 3 ✀㢮࡜ࡋࡓࠋ⥅ᡭ୺➽࡟ࡣࡡࡌ⠇㕲➽ࢆ⏝࠸㸪ୖഃࡣ D16㸪ୗഃࡣ D19 ࡜ࡋࡓࠋ㓄ຊ➽ࡣୖୗ㠃࡜ࡶ࡟ D13 ࡢ␗ᙧ㕲➽ࢆ୺➽እഃ࡟㓄⨨ࡋ㸪࠿ࡪࡾࡣୖୗ㠃࡜ࡶ࡟ 40mm ࡜ࡋࡓࠋ⥅ᡭ୺➽ࡣ๓㏙ࡢ C ♫࢚࣏࢟ࢩᶞ⬡ሬ⿦㕲➽࡜ࡋ㸪᥋ྜ㒊ࡢ㓄ຊ➽ࡣᶆ‽ࢱ࢖ࣉࡢ࢚࣏࢟ࢩᶞ⬡ሬ⿦㕲➽࡜ࡋࡓࠋᗋ∧㒊ࡢ㓄ຊ➽ࡣ↓ሬ⿦㕲➽࡜ࡋࡓࠋᅗ㻙㻡 ࡟ヨ㦂యࡢ㓄➽ᅗࢆ♧ࡍ㸦Type-S(15d)㸧ࠋ୺➽࡜㓄ຊ➽ࡣୖୗ㠃࡜ࡶ࡟ 150mm 㛫㝸ࢆᇶᮏ࡜ࡋࡓࠋ '

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উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕᥋ྜ㒊࡜ࡢᡴ⥅㠃ࡣ㸪ᆺᯟ࡟㐜ᘏ๣ࢆሬᕸࡋ࡚⬺ᯟᚋ࡟㧗ᅽỈ࡟ࡼࡿὙ࠸ฟࡋࢆ⾜ࡗࡓࠋ᥋ྜ㒊࡟ࡣ⭾ᙇࢥࣥࢡ࣮ࣜࢺ㸦཰⦰⿵ൾ⏝㸧ࢆ౑⏝ࡋࡓࠋ㍕Ⲵ᪉ἲࡣ㸪᥋ྜ㒊ࡀ➼᭤ࡆ༊㛫࡜࡞ࡿࡼ࠺࡟ 850mm 㛫㝸ࡢ 2 ⥺㍕Ⲵ࡜ࡋ㸪ࡦࡧ๭ࢀⲴ㔜ࡲ࡛Ⲵ㔜
ไᚚ࡛ 3 ᅇ⧞ࡾ㏉ࡋ㸪ࡑࡢᚋኚ఩ไᚚ࡛◚ቯࡲ࡛༢⣧㍕Ⲵ࡜ࡋࡓ㸦ᅗ㸧ࠋ෗┿ ࡟㍕Ⲵ≧ἣࢆ♧ࡍࠋ 

᥋ྜ㒊ᅗ㍕Ⲵ᪉ἲ෗┿㟼ⓗ᭤ࡆ㍕Ⲵヨ㦂ࡢ≧ἣ㸲㸬㸰 ヨ㦂⤖ᯝ⾲ᮦᩱㅖᩘ್⾲ ࡟ヨ㦂᫬ࡢᮦᩱㅖᩘ್ࢆ♧ࡍࠋᅗ࠾ࡼࡧᅗ ࡟㍕ⲴⲴ㔜࡜ᨭ㛫୰ኸࡢኚ఩ࡢᗋ∧㒊䝁䞁䜽䝸䞊䝖ヨ㦂యྡ᥋ྜ㒊䝁䞁䜽䝸䞊䝖㕲➽㻔䝭䝹䝅䞊䝖䠅ᅽ⦰ᙉᗘ 䝲䞁䜾ಀᩘᅽ⦰ᙉᗘ 䝲䞁䜾ಀᩘ䃢㼏㼇㻺㻛㼙㼙㻞㼉 㻱㼏㼇㼗㻺㻛㼙㼙㻞㼉 䃢㼏㼇㻺㻛㼙㼙㻞㼉 㻱㼏㼇㼗㻺㻛㼙㼙㻞㼉㛵ಀࢆ♧ࡍࠋ┤⥺ᐃ╔ࢱ࢖ࣉࡢ Type-S(15d)㼀㼥㼜㼑㻙㻿㻔㻝㻡㼐㻕ࡣ㸪㕲➽ࡢᐇᙉᗘ࠿ࡽ⟬ฟࡋࡓ㝆అ⪏ຊࢆ㼀㼥㼜㼑㻙㻿㻔㻝㻞㼐㻕ୖᅇࡗࡓࡀ㸪୧⥅┠㒊఩⨨࡛┠ᆅ๭ࢀࡀ㐍㼀㼥㼜㼑㻙㻮㻡㻝㻚㻝㻟㻞㻚㻤㻡㻝㻚㻤

㻟㻠㻚㻟㻡㻜㻚㻡㻟㻟㻚㻟

㻡㻞㻚㻡㻟㻟㻚㻥

㝆అᙉᗘ䃢㼥䠷㻺㻛㼙㼙㻞䠹㻠㻜㻝ᒎࡋࡓᚋ㸪⤊ᒁ⪏ຊ࡟⮳ࡿ๓࡟ᐃ╔㒊㏆ഐࡢࢥࣥࢡ࣮ࣜࢺࡀ◚ቯࡋࡓࠋType-S(12d)ࡣ㸪㕲➽ࡢᐇᙉᗘ࠿ࡽ⟬ฟࡋࡓ㝆అ⪏ຊ๓ᚋ࡛ྠᵝ࡟ᐃ╔㒊㏆ഐࡢࢥࣥࢡ࣮ࣜࢺࡀ◚ቯࡋࡓࠋ᭤ࡆᐃ╔ࢱ࢖ࣉࡢ Type-Bࡣ㸪Type-S(15d)࡜ྠᵝ࡟㸪㕲➽ࡢᐇᙉᗘ࠿ࡽ⟬ฟࡋࡓ㝆అ⪏ຊࢆୖᅇࡗࡓࡀ㸪୰ኸ௜ྜࢃࡏ㒊࠿ࡽⓎ⏕ࡋࡓࡦࡧ๭ࢀࡀ㐍ᒎࡋࡓᚋ㸪⤊ᒁ⪏ຊ࡟⮳ࡿ๓࡟ᐃ╔㒊㏆ഐࡢࢥࣥࢡ࣮ࣜࢺࡀ◚ቯࡋࡓࠋϯϬϬϯϬϬ ϮϱϬϮϱϬϮϬϬdǇƉĞͲ^;ϭϱĚͿϭϱϬdǇƉĞͲ^;ϭϮĚͿ⤊ᒁ⪏ຊ䠄ᐇᙉᗘ䠅 ϭϬϬⲴ 㔜䠷ŬE䠹Ⲵ 㔜΀ŬE΁ ϮϬϬϭϱϬdǇƉĞͲ㝆అ⪏ຊ䠄ᐇᙉᗘ䠅ϭϬϬ⤊ᒁ⪏ຊ;ᐇᙉᗘ䠅㝆అ⪏ຊ䠄ᐇᙉᗘ䠅⤊ᒁ⪏ຊ䠄タィ⏝್䠅ϱϬ⤊ᒁ⪏ຊ䠄タィ⏝್䠅ϱϬʍƐϭϰϬ┦ᙜⲴ㔜ʍƐϭϰϬ┦ᙜⲴ㔜ϬϬϬϭϬϮϬϯϬ୰ኸኚ఩΀ŵŵ΁ϰϬϱϬᅗⲴ㔜ኚ఩ ┤⥺ᐃ╔ࢱ࢖ࣉ ϬϭϬϮϬϯϬ୰ኸኚ఩䠷ŵŵ䠹ϰϬϱϬᅗⲴ㔜ኚ఩ ᭤ࡆᐃ╔ࢱ࢖ࣉ ᅗ ࡟㸪Type-S(15d)࠾ࡼࡧ Type-B ࡟࠾ࡅࡿᐃ╔⫼㠃 ෇ᙧࢼࢵࢺ࠿ࡽ 25mm ఩⨨ ࡢ㕲➽ࡦࡎࡳࢆ♧ࡍࠋ◚ቯ᫬ࡢ㕲➽ࡢࡦࡎࡳࡣ 800ȝ ⛬ᗘ㸦Es=200kN/mm2 ࡜ࡋ࡚ ıs=160N/mm2㸧࡛࠶ࡾ㸪๓㏙ࡋࡓ⾲ ࡟♧ࡍ᭱኱Ⲵ㔜ࡢ༙ศ⛬ᗘ࡛࠶ࡗࡓࠋ㍕Ⲵᚋ࡟⥅ᡭ㒊ࡢࢥࣥࢡ࣮ࣜࢺࢆࡣࡘࡾྲྀࡗ࡚ᐃ╔㒊ࢆ☜ㄆউঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕ࡋࡓࡀ㸪෇ᙧࢼࢵࢺࡸ㕲➽࡟ኚ≧ࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓ㸦෗┿䠈෗┿㸧ࠋ㕲➽ࡢ㝆అᙉᗘࡀタィ⏝್㸦SD345㸧࡟ẚ㍑ࡋ࡚㧗࠸ᙉᗘࡢ㕲➽ࢆ౑⏝ࡋࡓヨ㦂⤖ᯝ࡛ࡣ࠶ࡿࡀ㸪Type-S(15d)࠾ࡼࡧ Type-B ヨ㦂యࡢ◚ቯⲴ㔜ࡣ㸪タィ⏝್㸦SD345㸧࠿ࡽ⟬ฟࡋࡓ⤊ᒁ⪏ຊࢆ‶㊊ࡋ㸪㐨㊰ᶫᗋ∧࡟࠾ࡅࡿ㕲➽ࡢチᐜᛂຊᗘϯϬϬ㸦140N/mm2 㸧┦ᙜࡢ⪏ຊ࡟ᑐࡋ࡚༑ศᏳ඲࡛࠶

ϮϱϬ㏆࠸ሙྜ㸪タィ⏝್࠿ࡽ⟬ฟࡋࡓ⤊ᒁ⪏ຊࢆ‶㊊ࡍࡿ࠿ࡣ᫂☜࡛ࡣ࡞࠸ࡀ㸪ࡦࡧ๭ࢀ఩⨨࠿ࡽᐃ╔య࡟ఏ㐩ࡉࢀࡿᘬᙇຊࡶపῶࡉࢀࡿࡓࡵ㸪ᐃ╔యⲴ 㔜䠷ŬE䠹ࡿࠋࡲࡓ㸪㝆అᙉᗘࡀࡼࡾタィ⏝್㸦SD345㸧࡟ϮϬϬϭϱϬϭϬϬdǇƉĞͲ^;ϭϱĚͿ㏆ഐࡢࢥࣥࢡ࣮ࣜࢺ࡟ᑐࡋ࡚ࡣᏳ඲ഃ࡜࡞ࡿࠋࡇ

ϱϬࢀࡽࡢࡇ࡜࠿ࡽ㸪Type-S(15d)࠾ࡼࡧ Type-B ࡢ⥅ϬdǇƉĞͲϬᡭᵓ㐀ࡣ㸪PCaPC ᗋ∧┦஫ࡢ᥋ྜ㒊࡟㐺⏝ࡍࡿ࡟࠶ࡓࡗ࡚༑ศ࡞Ᏻ඲ᛶࢆ᭷ࡋ࡚࠸ࡿ࡜⪃࠼ࡿࠋϱϬϬᐃ╔⫼㠃䛾㕲➽䜂䛪䜏;㽢ʅͿϭϬϬϬᅗⲴ㔜㕲➽ࡦࡎࡳ෗┿ ᐃ╔㒊ࡢ≧ἣ ᭤ࡆᐃ╔ࢱ࢖ࣉ ෗┿ ᐃ╔㒊ࡢ≧ἣ ┤⥺ᐃ╔ࢱ࢖ࣉ 㸳㸬ࡲ࡜ࡵ  ྛヨ㦂࡟ࡼࡾ௨ୗࡢࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ࣭ᐃ╔ᵓ㐀ࡢᘬᢤࡁヨ㦂࡟ࡼࡾ௦⾲ⓗ࡞࣓࣮࣮࢝2♫ࡢࡡࡌ⠇㕲➽࡟ᑐࡋ࡚෇ᙧࢼࢵࢺࡣ㕲➽ᛂຊᗘ࡛
300N/mm2௨ୖࡢ᥋ྜ⪏ຊࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ࣭ࢥࣥࢡ࣮ࣜࢺᐃ╔ᛶ⬟ヨ㦂ࡼࡾ2♫ࡢሬ⿦௙ᵝࡢᐃ╔ᛶ⬟ࡣྠ➼࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ࣭௜╔ᛶ⬟ヨࡼࡾ2♫ࡢሬ⿦௙ᵝࡢ㕲➽ࡣ〄㕲➽࡜ྠ➼௨ୖࡢ௜╔ᛶ⬟ࢆ᭷ࡋ࡚࠸ࡓࠋ࣭㟼ⓗ᭤ࡆ㍕Ⲵヨ㦂ࡼࡾ┤⥺ࢱ࢖ࣉ㸦⥅ᡭ㛗15d㸧࠾ࡼࡧ᭤ࡆᐃ╔ࢱ࢖ࣉࡢ⥅ᡭᵓ㐀ࡣ㐨㊰ᶫPCaPCᗋ∧┦஫ࡢ᥋ྜ㒊࡬ࡢ㐺⏝࡟࠾࠸࡚༑ศ࡞⪏Ⲵᛶ⬟ࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ௒ᚋࡣ᭤ࡆ⪏ຊ࡟ᑐࡍࡿᏳ඲ᛶࢆ☜ㄆࡋࡓୖグࡢ⥅ᡭᵓ㐀࡟ࡘ࠸࡚㍯Ⲵ㔜㉮⾜ヨ㦂࡟ࡼࡿ⑂ປ⪏ஂᛶࡢ☜ㄆヨ㦂ࢆᐇ᪋ࡋ௒ᚋࡢ኱つᶍ᭦᪂஦ᴗ࡟࠾ࡅࡿᗋ∧ྲྀ᥮ᕤ஦ࡢ᭷ຠ࡞୍ᕤἲࡢ☜❧ࢆ┠ᣦࡍᡤᏑ࡛࠶ࡿࠋཧ⪃ᩥ⊩1) ᅵᮌᏛ఍ࢥࣥࢡ࣮ࣜࢺࣛ࢖ࣈ࣮ࣛࣜ 㕲➽ᐃ╔࣭⥅ᡭᣦ㔪[2007ᖺᗘ∧] 4❶